EP 2971756 B1 20190109 - WIND TURBINE BLADES WITH LAYERED, MULTI-COMPONENT SPARS, AND ASSOCIATED SYSTEMS
Title (en)
WIND TURBINE BLADES WITH LAYERED, MULTI-COMPONENT SPARS, AND ASSOCIATED SYSTEMS
Title (de)
WINDTURBINENSCHAUFELN MIT GESCHICHTETEN, MEHRKOMPONENTIGEN SPARREN SOWIE ENTSPRECHENDE SYSTEME
Title (fr)
PALES D'ÉOLIENNE DOTÉES DE LONGERONS EN COUCHES, À PLUSIEURS COMPOSANTS, ET SYSTÈMES
Publication
Application
Priority
- US 201313802590 A 20130313
- DK 2014050053 W 20140311
Abstract (en)
[origin: US2014271198A1] Wind turbine blades with layered, multi-component spars, and associated systems and methods are disclosed. A wind turbine blade system in accordance with a particular embodiment includes a first blade segment having a first spar element that includes first planks having a first thickness and a first plank composition, and a second blade segment having a second spar element that includes second planks having a second thickness and a second plank composition different than the first plank composition. The second blade segment is joined to the first blade segment at a joint, and, in particular embodiments, an overall product of thickness and elastic modulus of the first planks is approximately equal to an overall product of thickness and elastic modulus for the second planks.
IPC 8 full level
B29C 65/00 (2006.01); B29C 65/48 (2006.01); B29C 70/52 (2006.01); F03D 1/06 (2006.01); F03D 13/10 (2016.01); B29L 31/08 (2006.01)
CPC (source: EP US)
F03D 1/0675 (2013.01 - EP US); F03D 13/10 (2016.05 - US); B29C 65/48 (2013.01 - EP US); B29C 66/1248 (2013.01 - EP US); B29C 66/43 (2013.01 - EP US); B29C 66/721 (2013.01 - EP US); B29C 70/52 (2013.01 - EP US); B29L 2031/085 (2013.01 - EP US); F05B 2240/302 (2013.01 - EP US); Y02E 10/72 (2013.01 - EP US); Y02E 10/728 (2013.01 - US); Y02P 70/50 (2015.11 - EP US); Y10T 29/49337 (2015.01 - EP US)
Citation (examination)
WO 03078833 A1 20030925 - LM GLASFIBER AS [DK], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2014271198 A1 20140918; US 9470205 B2 20161018; CN 105209750 A 20151230; CN 105209750 B 20180608; DK 2971756 T3 20190311; EP 2971756 A1 20160120; EP 2971756 B1 20190109; WO 2014139534 A1 20140918
DOCDB simple family (application)
US 201313802590 A 20130313; CN 201480026788 A 20140311; DK 14710489 T 20140311; DK 2014050053 W 20140311; EP 14710489 A 20140311